Predicted richness of arbuscular mycorrhizal fungal virtual taxa, root symbionts of crops and grasslands (VT per 100 m²).
Predicted arbuscular mycorrhizal fungal richness in virtual taxa per 100 m² of soil, at about 1 km, worldwide. 3Bee reproduction of the published SPUN model (Van Nuland et al. 2025, Nature, CC-BY 4.0) — NOT the official SPUN product. Against the published Figure 2: r 0.979, median bias +0.10. On a small site the value describes the surrounding landscape, not a field measurement.